Javadoc not built for jme3-examples

[stephengold]

As noted at the Forum, a new Javadoc .jar file (and a corresponding .jar.asc) is deployed for each new version of most packages (in the org.jmonkeyengine repo at BinTray/JCenter) but not for jme3-examples.

To see this, browse to https://bintray.com/jmonkeyengine/org.jmonkeyengine/jme3-examples/3.3.2-stable#files/org%2Fjmonkeyengine%2Fjme3-examples%2F3.3.2-stable

This looks to be intentional. jme3-examples/gradle.properties has:

# When running this project we don't need javadoc to be built.
buildJavaDoc = false

The rationale isn't clear to me. Why do other subprojects need javadoc but not this one?

[stephengold]

related issue: #1370

[stephengold]

related issue: #1468 -- in order to publish jme3-examples to MavenCentral, we must provide javadoc

[stephengold]

Verified fixed in v3.4.0-alpha1. Classes from jme3-examples appear in both the v3.4.0-alpha1 merged javadoc and jme3-examples-3.4.0-alpha1-javadoc.jar